With line 4 I want it to split in the living room so it can goto my htpc, fileserver and secondary pc. So in the living room I'm assuming I will need a switch or another router (A little confused as alot of the googled searches have different questions saying it has to be a switch or router so...) I do know I'll need to set the living room on another subnet and disabled DHCP. I just wanted to be sure I'll be able to access everything over the home network so I can transfer files from each other faster.